We examine the prospects for supersymmetry discovery in the minimal supergravity(mSUGRA) model via indirect detection of neutralino dark matter. We investigate rates formuon detection in neutrino telescopes, and detection of photons, positrons and anti-protonsby balloon and space based experiments. We compare the discovery reach in these channelswith the reach for direct detection of dark matter, and also with the reach of colliderexperiments such as Fermilab Tevatron, CERN LHC and a TeV linear e+e− collider. We pay particular attention to regions of model parameter space in accordwith recent WMAP results on the dark matter density of the universe. We findthat third generation direct dark matter detection experiments should be able tocover the entire WMAP allowed portion of the hyperbolic branch/focus point(HB/FP) region of parameter space, while the IceCube neutrino telescope can coveralmost all this region. This is in contrast to the case of the CERN LHC or a lineare+e− collider, where only a fraction of the HB/FP region can be accessed. In addition, we show that detectionof γs, e+s and should occur in much of the HB/FP region, as well as in the lowm1/2 portionof the A annihilation funnel, and will be complementary to searches via colliders in these regions.